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Speaker Diarization Features: The UPM Contribution to the RT09 Evaluation

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5 Author(s)
José M. Pardo ; Speech Technology Group, Universidad Politecnica de Madrid, ETSI Telecomunicación, Ciudad Universitaria s/n, Madrid, Spain ; Roberto Barra-Chicote ; Rubén San-Segundo ; Ricardo de Cordoba
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Two new features have been proposed and used in the Rich Transcription Evaluation 2009 by the Universidad Politécnica de Madrid, which outperform the results of the baseline system. One of the features is the intensity channel contribution, a feature related to the location of the speaker. The second feature is the logarithm of the interpolated fundamental frequency. It is the first time that both features are applied to the clustering stage of multiple distant microphone meetings diarization. It is shown that the inclusion of both features improves the baseline results by 15.36% and 16.71% relative to the development set and the RT 09 set, respectively. If we consider speaker errors only, the relative improvement is 23% and 32.83% on the development set and the RT09 set, respectively.

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IEEE Transactions on Audio, Speech, and Language Processing  (Volume:20 ,  Issue: 2 )
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